Historical clue formulations

• Device making robocalls — 2022-09-22
• One placing a phone call — 2020-05-18
• Telemarketer's device — 2018-05-25
• One placing a telephone call — 2017-03-13
• One entering a number — 2008-10-03
• Rotary phone user — 2005-11-29
• Old phone user — 2005-01-30
• Old phone user — 2004-11-14
• Telephone user — 1999-11-21